how to fix the P0133 code on my Volvo XC60 536 (2017-Present)

Learn how to diagnose and fix P0133 oxygen sensor circuit issue in Volvo XC60. Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Disconnect the battery to prevent electrical shorts.
• Allow the vehicle to cool down before working on the exhaust system.

2. Inspect and Replace Oxygen Sensor

• Tools Required: O2 sensor socket, ratchet, torque wrench, multimeter, safety glasses, gloves.
• Sub-steps:
  1. Locate the upstream oxygen sensor (Bank 1 Sensor 1) on the exhaust manifold.
  2. Disconnect the electrical connector from the oxygen sensor.
  3. Use the O2 sensor socket to remove the old sensor by turning it counterclockwise.
  4. Apply anti-seize compound to the threads of the new oxygen sensor.
  5. Install the new oxygen sensor by threading it into place and tightening it to the manufacturer's specifications (generally around 30 lb-ft).
  6. Reconnect the electrical connector securely to the new oxygen sensor.

3. Check the Heater Circuit

• Tools Required: Multimeter.
• Sub-steps:
  1. With the battery connected, turn the ignition to the "On" position without starting the engine.
  2. Measure the voltage at the oxygen sensor's heater circuit terminals using a multimeter.
  3. If the voltage is absent or outside specifications, inspect the wiring for continuity, and repair or replace as needed.

4. Clear Codes and Test Drive

• Sub-steps:
  1. Use the OBD-II scanner to clear the P0133 code from the vehicle's computer.
  2. Test drive the vehicle for a sufficient distance to ensure that the repair has resolved the issue.